CVE-2023-28063 [Medium] | Denial of Service in Optiplex 3000 Micro Firmware

CVE-2023-28063 is rated Low Risk (28.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.16%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.04%	0.16%	+0.12%
2	2025-03-30	0.07%	0.04%	-0.04%
3	2025-03-29	—	0.07%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.04%

0.16%

+0.12%

2025-03-30

0.07%

0.04%

-0.04%

2025-03-29

—

0.07%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
6.7	3.1	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:H) They need powerful rights—admin, root, or similar—before this pays off. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	0.8	5.9	[email protected]
4.4	3.1	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:H) They need powerful rights—admin, root, or similar—before this pays off. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	0.8	3.6	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

6.7

3.1

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H): They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

0.8

5.9

[email protected]

4.4

3.1

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H): They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

0.8

3.6

[email protected]

Affected software / configurations for CVE-2023-28063

Vendor	Product	Version	Raw CPE
dell	optiplex_3000_micro_firmware	—	cpe:2.3:o:dell:optiplex_3000_micro_firmware:-:::::::*
dell	optiplex_3000_small_form_factor_firmware	—	cpe:2.3:o:dell:optiplex_3000_small_form_factor_firmware:-:::::::*
dell	optiplex_3000_tower_firmware	—	cpe:2.3:o:dell:optiplex_3000_tower_firmware:-:::::::*
dell	optiplex_5000_micro_firmware	—	cpe:2.3:o:dell:optiplex_5000_micro_firmware:-:::::::*
dell	optiplex_5000_small_form_factor_firmware	—	cpe:2.3:o:dell:optiplex_5000_small_form_factor_firmware:-:::::::*
dell	optiplex_5000_tower_firmware	—	cpe:2.3:o:dell:optiplex_5000_tower_firmware:-:::::::*
dell	optiplex_7000_micro_firmware	—	cpe:2.3:o:dell:optiplex_7000_micro_firmware:-:::::::*
dell	optiplex_7000_small_form_factor_firmware	—	cpe:2.3:o:dell:optiplex_7000_small_form_factor_firmware:-:::::::*
dell	optiplex_7000_tower_firmware	—	cpe:2.3:o:dell:optiplex_7000_tower_firmware:-:::::::*
dell	optiplex_7000_xe_micro_firmware	—	cpe:2.3:o:dell:optiplex_7000_xe_micro_firmware:-:::::::*
dell	optiplex_5090_micro_firmware	—	cpe:2.3:o:dell:optiplex_5090_micro_firmware:-:::::::*
dell	optiplex_5090_small_form_factor_firmware	—	cpe:2.3:o:dell:optiplex_5090_small_form_factor_firmware:-:::::::*
dell	optiplex_5090_tower_firmware	—	cpe:2.3:o:dell:optiplex_5090_tower_firmware:-:::::::*
dell	optiplex_micro_7010_firmware	—	cpe:2.3:o:dell:optiplex_micro_7010_firmware:-:::::::*
dell	optiplex_micro_plus_7010_firmware	—	cpe:2.3:o:dell:optiplex_micro_plus_7010_firmware:-:::::::*
dell	optiplex_small_form_factor_7010_firmware	—	cpe:2.3:o:dell:optiplex_small_form_factor_7010_firmware:-:::::::*
dell	optiplex_small_form_factor_plus_7010_firmware	—	cpe:2.3:o:dell:optiplex_small_form_factor_plus_7010_firmware:-:::::::*
dell	optiplex_tower_7010_firmware	—	cpe:2.3:o:dell:optiplex_tower_7010_firmware:-:::::::*
dell	optiplex_tower_plus_7010_firmware	—	cpe:2.3:o:dell:optiplex_tower_plus_7010_firmware:-:::::::*
dell	optiplex_xe4_firmware	—	cpe:2.3:o:dell:optiplex_xe4_firmware:-:::::::*
dell	optiplex_xe4_oemready_firmware	—	cpe:2.3:o:dell:optiplex_xe4_oemready_firmware:-:::::::*
dell	precision_3260_xe_compact_firmware	—	cpe:2.3:o:dell:precision_3260_xe_compact_firmware:-:::::::*
dell	precision_3260_compact_firmware	—	cpe:2.3:o:dell:precision_3260_compact_firmware:-:::::::*
dell	precision_3460_xe_small_form_factor_firmware	—	cpe:2.3:o:dell:precision_3460_xe_small_form_factor_firmware:-:::::::*
dell	precision_3460_small_form_factor_firmware	—	cpe:2.3:o:dell:precision_3460_small_form_factor_firmware:-:::::::*
dell	alienware_m15_r6_firmware	—	cpe:2.3:o:dell:alienware_m15_r6_firmware:-:::::::*
dell	alienware_m15_r7_firmware	—	cpe:2.3:o:dell:alienware_m15_r7_firmware:-:::::::*
dell	chengming_3901_firmware	—	cpe:2.3:o:dell:chengming_3901_firmware:-:::::::*
dell	chengming_3900_firmware	—	cpe:2.3:o:dell:chengming_3900_firmware:-:::::::*
dell	chengming_3911_firmware	—	cpe:2.3:o:dell:chengming_3911_firmware:-:::::::*
dell	chengming_3910_firmware	—	cpe:2.3:o:dell:chengming_3910_firmware:-:::::::*
dell	chengming_3990_firmware	—	cpe:2.3:o:dell:chengming_3990_firmware:-:::::::*
dell	chengming_3991_firmware	—	cpe:2.3:o:dell:chengming_3991_firmware:-:::::::*
dell	g15_5510_firmware	—	cpe:2.3:o:dell:g15_5510_firmware:-:::::::*
dell	g15_5511_firmware	—	cpe:2.3:o:dell:g15_5511_firmware:-:::::::*
dell	g15_5520_firmware	—	cpe:2.3:o:dell:g15_5520_firmware:-:::::::*
dell	g3_3500_firmware	—	cpe:2.3:o:dell:g3_3500_firmware:-:::::::*
dell	g5_15_5590_firmware	—	cpe:2.3:o:dell:g5_15_5590_firmware:-:::::::*
dell	g5_5000_firmware	—	cpe:2.3:o:dell:g5_5000_firmware:-:::::::*
dell	g7_15_7500_firmware	—	cpe:2.3:o:dell:g7_15_7500_firmware:-:::::::*
dell	g7_15_7590_firmware	—	cpe:2.3:o:dell:g7_15_7590_firmware:-:::::::*
dell	g7_17_7700_firmware	—	cpe:2.3:o:dell:g7_17_7700_firmware:-:::::::*
dell	g7_17_7790_firmware	—	cpe:2.3:o:dell:g7_17_7790_firmware:-:::::::*
dell	inspiron_13_5320_firmware	—	cpe:2.3:o:dell:inspiron_13_5320_firmware:-:::::::*
dell	inspiron_14_5418_firmware	—	cpe:2.3:o:dell:inspiron_14_5418_firmware:-:::::::*
dell	inspiron_14_5410_firmware	—	cpe:2.3:o:dell:inspiron_14_5410_firmware:-:::::::*
dell	inspiron_14_5420_firmware	—	cpe:2.3:o:dell:inspiron_14_5420_firmware:-:::::::*
dell	inspiron_14_7420_2-in-1_firmware	—	cpe:2.3:o:dell:inspiron_14_7420_2-in-1_firmware:-:::::::*
dell	inspiron_14_plus_7420_firmware	—	cpe:2.3:o:dell:inspiron_14_plus_7420_firmware:-:::::::*
dell	inspiron_15_3511_firmware	—	cpe:2.3:o:dell:inspiron_15_3511_firmware:-:::::::*
dell	inspiron_15_5510_firmware	—	cpe:2.3:o:dell:inspiron_15_5510_firmware:-:::::::*
dell	inspiron_15_5518_firmware	—	cpe:2.3:o:dell:inspiron_15_5518_firmware:-:::::::*
dell	inspiron_16_7620_2-in-1_firmware	—	cpe:2.3:o:dell:inspiron_16_7620_2-in-1_firmware:-:::::::*
dell	inspiron_16_plus_7620_firmware	—	cpe:2.3:o:dell:inspiron_16_plus_7620_firmware:-:::::::*
dell	inspiron_24_5410_all-in-one_firmware	—	cpe:2.3:o:dell:inspiron_24_5410_all-in-one_firmware:-:::::::*
dell	inspiron_24_5411_all-in-one_firmware	—	cpe:2.3:o:dell:inspiron_24_5411_all-in-one_firmware:-:::::::*
dell	inspiron_27_7710_all-in-one_firmware	—	cpe:2.3:o:dell:inspiron_27_7710_all-in-one_firmware:-:::::::*
dell	inspiron_3020_small_desktop_firmware	—	cpe:2.3:o:dell:inspiron_3020_small_desktop_firmware:-:::::::*
dell	inspiron_3020_desktop_firmware	—	cpe:2.3:o:dell:inspiron_3020_desktop_firmware:-:::::::*
dell	inspiron_3490_firmware	—	cpe:2.3:o:dell:inspiron_3490_firmware:-:::::::*
dell	inspiron_3493_firmware	—	cpe:2.3:o:dell:inspiron_3493_firmware:-:::::::*
dell	inspiron_3501_firmware	—	cpe:2.3:o:dell:inspiron_3501_firmware:-:::::::*
dell	inspiron_3511_firmware	—	cpe:2.3:o:dell:inspiron_3511_firmware:-:::::::*
dell	inspiron_3520_firmware	—	cpe:2.3:o:dell:inspiron_3520_firmware:-:::::::*
dell	inspiron_3593_firmware	—	cpe:2.3:o:dell:inspiron_3593_firmware:-:::::::*
dell	inspiron_3880_firmware	—	cpe:2.3:o:dell:inspiron_3880_firmware:-:::::::*
dell	inspiron_3881_firmware	—	cpe:2.3:o:dell:inspiron_3881_firmware:-:::::::*
dell	inspiron_3891_firmware	—	cpe:2.3:o:dell:inspiron_3891_firmware:-:::::::*
dell	inspiron_3910_firmware	—	cpe:2.3:o:dell:inspiron_3910_firmware:-:::::::*
dell	inspiron_5300_firmware	—	cpe:2.3:o:dell:inspiron_5300_firmware:-:::::::*
dell	inspiron_5301_firmware	—	cpe:2.3:o:dell:inspiron_5301_firmware:-:::::::*
dell	inspiron_5310_firmware	—	cpe:2.3:o:dell:inspiron_5310_firmware:-:::::::*
dell	inspiron_5391_firmware	—	cpe:2.3:o:dell:inspiron_5391_firmware:-:::::::*
dell	inspiron_5400_firmware	—	cpe:2.3:o:dell:inspiron_5400_firmware:-:::::::*
dell	inspiron_5400_2-in-1_firmware	—	cpe:2.3:o:dell:inspiron_5400_2-in-1_firmware:-:::::::*
dell	inspiron_5401_firmware	—	cpe:2.3:o:dell:inspiron_5401_firmware:-:::::::*
dell	inspiron_5401_aio_firmware	—	cpe:2.3:o:dell:inspiron_5401_aio_firmware:-:::::::*
dell	inspiron_5402_firmware	—	cpe:2.3:o:dell:inspiron_5402_firmware:-:::::::*
dell	inspiron_5406_2-in-1_firmware	—	cpe:2.3:o:dell:inspiron_5406_2-in-1_firmware:-:::::::*
dell	inspiron_5408_firmware	—	cpe:2.3:o:dell:inspiron_5408_firmware:-:::::::*

References for CVE-2023-28063

URL	Tags
https://www.dell.com/support/kbdoc/en-us/000214780/dsa-2023-176-dell-client-bios-security-update-for-a-signed-to-unsigned-conversion-error-vulnerability	Vendor Advisory

URL

CVE-2023-28063

Exploit prediction scoring system (EPSS) score for CVE-2023-28063

Common vulnerability scoring system (CVSS) metrics for CVE-2023-28063

Weakness enumeration for CVE-2023-28063

Affected software / configurations for CVE-2023-28063

References for CVE-2023-28063